New constraints on the uplift of October 9, 1995 Jalisco-Colima earthquake (Mw 8) based on the analysis of tsunami records at Manzanillo and Navidad, Mexico

Tsunami records registered during the October 9, 1995 Jalisco-Colima earthquake (Mw 8) by two tide gauges and onepressure gauge are analyzed to estimate the coseismic subsidence at Manzanillo and Navidad Bay. Numerical modeling of thetsunami waveform determined the location and magnitude of the maxi...

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Detalhes bibliográficos
Autores: M. Ortiz, J. Pacheco, S. K. Singh, V. Kostoglodov
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2000
País:México
Recursos:Universidad Nacional Autónoma de México
Repositorio:Redalyc-UNAM
OAI Identifier:oai:redalyc.org:56839405
Acesso em linha:https://www.redalyc.org/articulo.oa?id=56839405
Access Level:acceso abierto
Palavra-chave:Ciencias de la Tierra
Colima
Mexico
tsunami
October 9
earthquake
Descrição
Resumo:Tsunami records registered during the October 9, 1995 Jalisco-Colima earthquake (Mw 8) by two tide gauges and onepressure gauge are analyzed to estimate the coseismic subsidence at Manzanillo and Navidad Bay. Numerical modeling of thetsunami waveform determined the location and magnitude of the maximum coseismic uplift on the fault plane. To fit the observeddata, the fault slip offshore from Manzanillo is required to be 2-3 times smaller than the average slip on the fault plane off NavidadBay. The new constraints on the coseismic uplift distribution obtained combined with the existing coseismic inland GPS datashould accomplish a new more detailed inversion of the fault-slip distribution.